Circular mobile device



FIG. 1 is a front view of a circular mobile device showing the new design;

FIG. 2 is a back view thereof;

FIG. 3 is a top view thereof, shown enlarged;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof. 

CLAIM The ornamental design for a circular mobile device, as shown and described. 